Jiayuguan in Fall
In fall (September, October and November), Jiayuguan sees average daytime highs around 13°C and overnight lows near 2°C, with 30 mm of precipitation over about 7 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 23°C in early September to 2°C by late November. The sky is clear or mostly clear about 59% of the time across fall, and the air most often feels dry.
Fall is Jiayuguan's 3rd-best season to visit on our travel score. For the whole year in context, see Jiayuguan's year-round climate.
- Avg daytime high
- 13°C
- 3rd-warmest season
- Avg overnight low
- 2°C
- Precipitation
- 30 mm
- 7 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.4
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Jiayuguan in Fall
Over the season highs ease from about 23°C in early September to 2°C by late November.
A typical fall day in Jiayuguan reaches about 13°C and drops to 2°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Jiayuguan
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 47 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Jiayuguan weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -3° / -13° | 3 | 1.1 | 1.7 | 9.5 | 0.0 |
| Feb | 1° / -10° | 3 | 1.1 | 1.5 | 10.4 | 0.0 |
| Mar | 8° / -4° | 10 | 2.3 | 2.2 | 11.7 | 1.6 |
| Apr | 15° / 3° | 9 | 2.3 | 0.8 | 13 | 5.7 |
| May | 21° / 9° | 15 | 3.9 | 0.2 | 14.2 | 7.4 |
| Jun | 25° / 14° | 20 | 4.2 | 0 | 14.8 | 7.8 |
| Jul | 27° / 16° | 25 | 5.2 | 0 | 14.5 | 7.5 |
| Aug | 25° / 14° | 27 | 5.4 | 0 | 13.6 | 7.8 |
| Sep | 20° / 9° | 18 | 3.5 | 0 | 12.3 | 7.6 |
| Oct | 14° / 2° | 7 | 1.8 | 0.6 | 10.9 | 4.9 |
| Nov | 5° / -5° | 5 | 1.6 | 1.7 | 9.8 | 0.7 |
| Dec | -2° / -11° | 4 | 1.4 | 1.8 | 9.2 | 0.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 59% of the time across fall.
Chance of precipitation in Fall
Jiayuguan gets around 30 mm of rain and snow over 7 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 8 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 54 min in early September to 9 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.1 kWh/m².
Hazard calendar for Jiayuguan
In fall, Jiayuguan overlaps its dust season. The full year is below, with each hazard's peak months called out.
Jiayuguan sees seasonal dust haze (March–October), heaviest in May.
Is fall a good time to visit Jiayuguan?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Jiayuguan for sightseeing.
What to pack for Jiayuguan in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Jiayuguan sees daytime highs around 13°C and nights near 2°C. Pack a warm layer and a heavy coat. Worth having: sun protection. About 7 days see rain.
UV index in Jiayuguan in Fall
Clear-sky midday UV across fall averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Jiayuguan peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 8 | 10 | 11 | 9 | 8 | 4 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Extreme | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 10 | Very high |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Jiayuguan in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Jiayuguan is worst in May — around 39 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (December, 15 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Jiayuguan's WHO annual average of 25.9 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 19 | 20 | 37 | 39 | 39 | 25 | 22 | 26 | 22 | 26 | 21 | 15 |
| Level | Moderate | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 20 | Moderate |
| Mar | 37 | Poor |
| Apr | 39 | Poor |
| May | 39 | Poor |
| Jun | 25 | Moderate |
| Jul | 22 | Moderate |
| Aug | 26 | Moderate |
| Sep | 22 | Moderate |
| Oct | 26 | Moderate |
| Nov | 21 | Moderate |
| Dec | 15 | Moderate |
Where is Jiayuguan?
Jiayuguan sits at 39.8°N, 98.3°E, 1,635 m above sea level, in China. The nearest listed city is Dunhuang, 309 km away.
Topography around Jiayuguan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jiayuguan.
Within 3 km, the terrain around Jiayuguan has only modest variations in elevation — a maximum elevation change of 90 m around an average of 1,636 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 748 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,337 m.
The land around Jiayuguan is covered by artificial surfaces (57%) and bare terrain (32%) within 3 km, bare terrain (75%) within 16 km, and bare terrain (70%) within 80 km.
China travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / I
- 220 V · 50 Hz
- Prices
- ≈ 47% of US
- price level, 2025
- GDP per capita
- $13,862
- 2025
- Happiness
- 6.1 / 10
- World Happiness, 2025
- Homicide rate
- 0.5
- per 100k, 2020
- Road deaths
- 17.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 464
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Jiayuguan (39.8112°, 98.2862°, elevation 1,635 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.